Axle-lubricator



(No Model.)

A. J. HAWKINS 86 S. H. ALLEN.

AXLE LUBRIOATOR. No; 339,768. Patented Apr.'l3,. 1886.

u m'cns. PholoLiflnognphur. Wahlngtm ac UNITED STATES PATENT O FICE.

ANDREW J AOKSON HAWVKINS AND SAM HENRY ALLEN, OF STRAWN, TEXAS.

AXLE-LUBRICATOR.

SPECIFICATION forming part of Letters Patent No. 339,768, dated April 13,-1886.

Application filed February 2, 1886. Serial No. 190,626. (No model.)

To aZZ whom it may concern Be it known that we, ANDREW JAcKsoN HAwKINs and SAM HENRY ALLEN, citizens of the United States, residing at Strawn, in the county of Palo Pinto and State of Texas, have invented anew and useful Improvement in Axle-Lubricators, of which the following is a specification, reference being had to the ac coinpanying drawings.

Our invention relates to improvements in aXle-lubricators for wheeled vehicles; and it consists, essentially, in the construction, ar-

rangement, and combination of its several parts for service, substantially as hereinafter described, and specifically pointed out in the claims.

In the drawings, Figure 1 represents a side elevation of an axle-lubricator constructed in accordance with our improvements. Fig. 2 is a top plan view thereof. Fig. 3 represents a longitudinal section thereof on the line a: m of Fig. 2, and Fig. 4 represents a transverse section through a wagon-hub provided with our improvement.

Referring to the drawings, in which similar letters of reference denote similar parts, A designates a wheethub; B, the metallic box therein, in which the axle-journal G operates.

D designates the lubricator, consisting of a short section of tube, of any desired metal, provided at its upper end with laterally-projecting lugs or ears d, having apertures d formed therein to receive screws that securely hold the tube D within an aperture, a,formed in the hub A. The lower end of the tube Dis hollowed out to closely fit against the outer surface of the boX B, through which is formed an aperture, b, at a point in line with the axis of the tube. The inner surface of the tube D at its upper end is screw-threaded, to receive a screw-threaded plug, E, that forms the top of the cup or lubricator.

f designates a screw threaded aperture formed through the plug E at the middle thereof, to receive the upper screw-threaded end of a plunger, F, the lower end of which is provided with a plug, f, having tapering sides, that fits the apertures fin the box B. The upper end of the plunger Fis apertured to receive a ring, f whereby said plunger is operated toward or from the aperture b in the box B. A shoulder, f, upon the plunger-rod at the bottom of the screw-threaded part thereof curvature of the box around the aperture, the

outer end of the tube being threaded interiorly, the cap E, threaded exteriorly to screw into and close the outer open end of the tube, and the stem or plunger F, working through a threaded opening in the cap, and having the conical plugf at its lower or inner end, to neatly fit the aperture b, the diameter of the plug being considerably less than the inner diameter of the tube, so that the shank or stem need be screwed out but a short distance to lubricate the axle, as the lubricant is at all times over the top of the plug and around the aperture 1), as set forth.

2. The combinatioinwith the tube D having the threaded outer end, of the cap E,threaded to close said end, and the shank or stem F, car-' rying the conical plug f at its lower or inner end, and screw-threaded to work through a threaded perforation of the cap E,'a shoulder, f being provided on the stem or shank at the base of the threads,operating to cause the unscrewing of the cap E by the continued turning of the shank or stem, as set forth.

In testimony that we claim the foregoing as our own we have hereto affixed our signatures in presence of two witnesses.

ANDREW JACKSON HAWKINS. SAM HENRY ALLEN.

Witnesses:

W. J. CANTWELL, J A. WRIGHT. 

